No. 6a. Isobarit : Eri vuodenaikoina ja koko vuonna. 1881-1890. = Isobarer : För de olika årstiderna och för hela året. 1881-1890. : Vuosi. = Året -- Kevät. = Vår. -- Kesä. = Sommar. -- Syksy. = Höst. -- Talvi. = Vinter. -- No. 6b. Tuuliruusut : Eri vuodenaikoina ja koko vuonna. 1886-1890. = Vindrosor : För de olika årstiderna och för hela året. 1886-1890. : Vuosi. = Året -- Kevät. = Vår. -- Kesä. = Sommar. -- Syksy. = Höst. -- Talvi. = Vinter. Helsingfors, Aktiebolaget F. Tilgmann, bok- och stentryckeri. : Atlas öfver Finland. Sällskapet för Finlands geografi, Helsingfors 1899, Aktiebolaget F. Tilgmanns bok- och stentryckeri. : No. 6a. Isobarit : Eri vuodenaikoina ja koko vuonna. 1881-1890. = Isobarer : För de olika årstiderna och för hela året. 1881-1890 ...

Five climate maps of Finland. Maps feature isobars - areas of the same average atmospheric pressure over time - in different seasons and throughout the year, from 1886 to 1890. Also, five wind maps featuring different seasons and throughout the year. Maps also show cities, railways, bodies of water, drainage, coastlines and islands. Maps include latitudinal and longitudinal lines. Colored lithograph. Together, maps are 55 x 39 cm, on double sheet 60 x 43 cm. Text presented in parallel Finnish and Swedish.

Atlas öfver Finland, by Sällskapet för Finlands geografi [Suomen Maantieteellinen Seura]; published in Helsinki, 1899. Title translates to: Atlas of Finland. Bound in dark teal board with reinforced spine. Front cover has gilded title and coat of arms for Finland. Collation: 2° : [1-8], 9-12, [32] double leaves of plates. Volume comprised of a title page, editorial board list, preface, table of contents, statistical tables and 86 maps. Maps topics include topography, geology, soils, climate, forests, agriculture, water, minerals, economics, transportation, communication and history. Maps also show cities, railways, bodies of water, drainage, coastlines and islands. Some maps employ data visualization to convey information, such as on light houses and the illumination they produce. For related item in collection - the next edition of the atlas, published in 1910 - see Pub List No. 14367.000. According to the preface from the 1910 edition, the volume was published because the 1899 edition "was so well received by the public in its own country and among the representatives of geographical science that continuing to work in the same direction appeared to the Society as an inalienable duty."